Question:
Life cycle of a normal cultivated rice from germination to physiological maturity is completed in
Life cycle of a normal cultivated rice from germination to physiological maturity is completed in
Show Hint
The rice life cycle is divided into three main stages: vegetative (constant at ~45 days), reproductive (constant at ~30 days), and ripening (constant at ~30 days). Variations in overall duration are primarily driven by the length of the vegetative stage.
Updated On: Jul 23, 2026
- 80-90 Days
- 90-100 Days
- 110-210 Days
- 250-260 Days
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
The growth duration of a crop represents the total days required from seed germination to physiological maturity.
This duration is highly genetically and environmentally determined, varying across different varieties and cultivars of rice (*Oryza sativa*).
Step 2: Detailed Explanation:
Cultivated rice varieties are classified into short, medium, and long-duration categories based on their life cycle:
1. Short-duration varieties (e.g., early maturing cultivars) complete their life cycle in approximately $110\text{ to }120 \text{ days}$.
2. Medium-duration varieties require around $120\text{ to }140 \text{ days}$ to mature.
3. Long-duration varieties (such as traditional deep-water or late-maturing photo-sensitive cultivars) can take up to $150\text{ to }210 \text{ days}$ to reach physiological maturity.
Therefore, the general range encompassing the vast majority of cultivated rice varieties worldwide is 110 to 210 days.
The other options ($80-90$ days, $90-100$ days) are too short to allow for vegetative growth and grain filling, while $250-260$ days is much longer than the standard life cycle of cultivated rice.
Step 3: Final Answer:
The life cycle of cultivated rice is completed in 110-210 days, corresponding to option (C).
The growth duration of a crop represents the total days required from seed germination to physiological maturity.
This duration is highly genetically and environmentally determined, varying across different varieties and cultivars of rice (*Oryza sativa*).
Step 2: Detailed Explanation:
Cultivated rice varieties are classified into short, medium, and long-duration categories based on their life cycle:
1. Short-duration varieties (e.g., early maturing cultivars) complete their life cycle in approximately $110\text{ to }120 \text{ days}$.
2. Medium-duration varieties require around $120\text{ to }140 \text{ days}$ to mature.
3. Long-duration varieties (such as traditional deep-water or late-maturing photo-sensitive cultivars) can take up to $150\text{ to }210 \text{ days}$ to reach physiological maturity.
Therefore, the general range encompassing the vast majority of cultivated rice varieties worldwide is 110 to 210 days.
The other options ($80-90$ days, $90-100$ days) are too short to allow for vegetative growth and grain filling, while $250-260$ days is much longer than the standard life cycle of cultivated rice.
Step 3: Final Answer:
The life cycle of cultivated rice is completed in 110-210 days, corresponding to option (C).
Was this answer helpful?
0
0
Top ICAR AIEEA Horticulture Questions
- In banana:
Statement (A): Bunch feeding is a simple and low-cost method.
Statement (B): It is the direct way to supply nutrients to the bunch.
Statement (C): Only micronutrients can be given through this method.
Choose the correct answer from the options given below. - The softwood grafting
Statement (I): Is done with mature, procured scion on the emerging soft, coppery-red shoot of the rootstock, which is 60-70 days old.
Statement (II): Is used for raising desired varieties of mango, sapota, tamarind and cashew.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): In garlic modified roots are economic part.
Statement (II): Characteristic odour in garlic is due to volatile organic sulfur-containing compounds that are rapidly produced upon tissue damage and diffuse into the air.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): The flowers of ridge gourd start opening in the evening and remain open throughout the night.
Statement (II): Pollination of ridge gourd is done in the day time.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): The first gynoecious based hybrid of bitter gourd is Pusa Hybrid-4 developed by ICAR-IARI, New Delhi.
Statement (II): The male:female ratio of the gynoecious based hybrids of bitter gourd is 25:1.
In light of the above statements, choose the most appropriate answer from the options given below.
View More Questions
Top ICAR AIEEA Horticulture Questions
- Reducing weed growth by manipulating water level in water bodies, light intensities, nutrient availability, competitive displacement. etc. is known as
- Dicladispa armigera is major pest of
- Given below are two statements:
Statement (I) : In India ratoon crop of sugarcane occupies about 50-55% of total cane area but contributes to only 30-35% of the total cane production
Statement (II) : The varieties possessing high regeneration capacity are required for ratooning and optimum temperature for quick sprouting of stubbles is around $27^\circ\text{C}$}
In light of the above statements, choose the most appropriate answer from the options given below. - Yearly sequence and spatial arrangement of crops and fallow on a given area is
- Which Irrigation system is useful for areas having water scarcity and salt problems ?
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions